-47.36% is the change from 851 to 448
Calculation steps:
[( 448 - 851 ) ÷ 851] x 100 = -47.36%
Formula
Percentage change = [(448 - 851) / 851] x 100
Subtract the new number by the original number
448 - 851 = -403
-403 ÷ 851 = -0.4735605170387779
-0.4735605170387779 x 100 = -47.36%